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7e4b8a4fbe
linux/drivers
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Gustavo Pimentel 7e4b8a4fbe dmaengine: Add Synopsys eDMA IP version 0 support 
Add support for the eDMA IP version 0 driver for both register maps (legacy
and unroll).

The legacy register mapping was the initial implementation, which consisted
in having all registers belonging to channels multiplexed, which could be
change anytime (which could led a race-condition) by view port register
(access to only one channel available each time).

This register mapping is not very effective and efficient in a multithread
environment, which has led to the development of unroll registers mapping,
which consists of having all channels registers accessible any time by
spreading all channels registers by an offset between them.

This version supports a maximum of 16 independent channels (8 write +
8 read), which can run simultaneously.

Implements a scatter-gather transfer through a linked list, where the size
of linked list depends on the allocated memory divided equally among all
channels.

Each linked list descriptor can transfer from 1 byte to 4 Gbytes and is
alignmented to DWORD.

Both SAR (Source Address Register) and DAR (Destination Address Register)
are alignmented to byte.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-06-10 13:10:39 +05:30
..
accessibility
acpi One more patch to remove io.h from clk-provider.h. We used to need this 2019-05-16 19:05:35 -07:00
amba amba: tegra-ahb: Mark PM functions as __maybe_unused 2019-05-08 14:40:39 +02:00
android Char/Misc patches for 5.2-rc1 - part 2 2019-05-07 13:39:22 -07:00
ata for-5.2/block-post-20190516 2019-05-16 19:08:15 -07:00
atm
auxdisplay
base More power management updates for 5.2-rc1 2019-05-15 08:46:44 -07:00
bcma
block for-5.2/block-post-20190516 2019-05-16 19:08:15 -07:00
bluetooth Bluetooth: hci_qca: Rename STATE_<flags> to QCA_<flags> 2019-05-05 19:34:00 +02:00
bus ARM: SoC-related driver updates 2019-05-16 09:19:14 -07:00
cdrom
char Some minor cleanups for the IPMI driver. 2019-05-08 10:34:17 -07:00
clk One more patch to remove io.h from clk-provider.h. We used to need this 2019-05-16 19:05:35 -07:00
clocksource Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-19 11:11:20 -07:00
connector
counter
cpufreq One more patch to remove io.h from clk-provider.h. We used to need this 2019-05-16 19:05:35 -07:00
cpuidle
crypto ARM: SoC platform updates 2019-05-16 08:31:32 -07:00
dax libnvdimm fixes 5.2-rc1 2019-05-15 18:56:50 -07:00
dca
devfreq
dio
dma dmaengine: Add Synopsys eDMA IP version 0 support 2019-06-10 13:10:39 +05:30
dma-buf drm i915, amdgpu, nouveau, msm, panfrost, bridge, pl111 fixes 2019-05-16 07:22:42 -07:00
edac * Do not build mpc85_edac as a module (Michael Ellerman) 2019-05-16 11:55:35 -07:00
eisa
extcon Char/Misc patches for 5.2-rc1 - part 2 2019-05-07 13:39:22 -07:00
firewire drivers/firewire/core-iso.c: convert to use vm_map_pages_zero() 2019-05-14 09:47:50 -07:00
firmware Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-19 10:58:45 -07:00
fmc
fpga ARM: SoC-related driver updates 2019-05-16 09:19:14 -07:00
fsi
gnss Char/Misc patches for 5.2-rc1 - part 2 2019-05-07 13:39:22 -07:00
gpio Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-19 10:58:45 -07:00
gpu One more patch to remove io.h from clk-provider.h. We used to need this 2019-05-16 19:05:35 -07:00
hid treewide: prefix header search paths with $(srctree)/ 2019-05-18 11:49:57 +09:00
hsi
hv
hwmon Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2019-05-16 16:16:18 -07:00
hwspinlock
hwtracing Char/Misc patches for 5.2-rc1 - part 2 2019-05-07 13:39:22 -07:00
i2c i2c: core: add device-managed version of i2c_new_dummy 2019-05-17 19:29:40 +02:00
i3c * Fix a shift wrap bug in the core 2019-05-07 08:50:40 -07:00
ide ide: officially deprecated the legacy IDE driver 2019-05-08 16:47:23 -07:00
idle
iio power supply and reset changes for the v5.2 series 2019-05-15 18:50:40 -07:00
infiniband 5.2 Merge Window second pull request 2019-05-14 20:56:31 -07:00
input ARM: SoC platform updates 2019-05-16 08:31:32 -07:00
interconnect
iommu Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-19 10:58:45 -07:00
ipack
irqchip Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-19 10:58:45 -07:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2019-05-07 22:03:58 -07:00
leds - Core Frameworks 2019-05-14 10:39:08 -07:00
lightnvm lightnvm: pblk: use nvm_rq_to_ppa_list() 2019-05-06 10:19:19 -06:00
macintosh
mailbox One more patch to remove io.h from clk-provider.h. We used to need this 2019-05-16 19:05:35 -07:00
mcb
md - Improve DM snapshot target's scalability by using finer grained 2019-05-16 15:55:48 -07:00
media media: prefix header search paths with $(srctree)/ 2019-05-18 11:49:56 +09:00
memory One more patch to remove io.h from clk-provider.h. We used to need this 2019-05-16 19:05:35 -07:00
memstick MMC core: 2019-05-07 12:56:19 -07:00
message
mfd One more patch to remove io.h from clk-provider.h. We used to need this 2019-05-16 19:05:35 -07:00
misc Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-19 11:11:20 -07:00
mmc One more patch to remove io.h from clk-provider.h. We used to need this 2019-05-16 19:05:35 -07:00
mtd treewide: replace #include <asm/sizes.h> with #include <linux/sizes.h> 2019-05-14 19:52:52 -07:00
mux
net treewide: prefix header search paths with $(srctree)/ 2019-05-18 11:49:57 +09:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2019-05-07 22:03:58 -07:00
ntb
nubus
nvdimm libnvdimm fixes 5.2-rc1 2019-05-15 18:56:50 -07:00
nvme for-5.2/block-post-20190516 2019-05-16 19:08:15 -07:00
nvmem ARM: SoC-related driver updates 2019-05-16 09:19:14 -07:00
of of_net: Fix missing of_find_device_by_node ref count drop 2019-05-13 08:52:37 -07:00
opp
oprofile
parisc parisc: Skip registering LED when running in QEMU 2019-05-03 23:47:39 +02:00
parport DMA mapping updates for 5.2 2019-05-09 08:40:55 -07:00
pci pci-v5.2-changes 2019-05-14 10:30:10 -07:00
pcmcia treewide: replace #include <asm/sizes.h> with #include <linux/sizes.h> 2019-05-14 19:52:52 -07:00
perf
phy USB/PHY patches for 5.2-rc1 2019-05-08 10:03:52 -07:00
pinctrl - Core Frameworks 2019-05-14 10:39:08 -07:00
platform - Core Frameworks 2019-05-14 10:39:08 -07:00
pnp
power power supply and reset changes for the v5.2 series 2019-05-15 18:50:40 -07:00
powercap
pps pps: pps-gpio PPS ECHO implementation 2019-05-14 19:52:51 -07:00
ps3
ptp ptp_qoriq: fix NULL access if ptp dt node missing 2019-05-09 09:19:26 -07:00
pwm Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-19 11:11:20 -07:00
rapidio rapidio: fix a NULL pointer dereference when create_workqueue() fails 2019-05-14 19:52:50 -07:00
ras
regulator Merge branch 'regulator-5.2' into regulator-next 2019-05-06 22:52:14 +09:00
remoteproc
reset ARM: SoC-related driver updates 2019-05-16 09:19:14 -07:00
rpmsg
rtc ARM: SoC-related driver updates 2019-05-16 09:19:14 -07:00
s390 s390 updates for the 5.2 merge window #2 2019-05-17 10:08:59 -07:00
sbus mm/gup: change GUP fast to use flags rather than a write 'bool' 2019-05-14 09:47:46 -07:00
scsi mm/gup: change GUP fast to use flags rather than a write 'bool' 2019-05-14 09:47:46 -07:00
sfi
sh treewide: replace #include <asm/sizes.h> with #include <linux/sizes.h> 2019-05-14 19:52:52 -07:00
siox
slimbus
sn
soc soc: tegra: fuse: Use dma_request_channel instead of __dma_request_channel() 2019-05-27 11:23:52 +05:30
soundwire
spi ARM: SoC-related driver updates 2019-05-16 09:19:14 -07:00
spmi
ssb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2019-05-07 22:03:58 -07:00
staging media updates for v5.2-rc1 2019-05-16 11:57:16 -07:00
target treewide: prefix header search paths with $(srctree)/ 2019-05-18 11:49:57 +09:00
tc
tee ARM: SoC-related driver updates 2019-05-16 09:19:14 -07:00
thermal Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2019-05-16 16:16:18 -07:00
thunderbolt Char/Misc patches for 5.2-rc1 - part 2 2019-05-07 13:39:22 -07:00
tty RISC-V Patches for the 5.2 Merge Window, Part 1 v3 2019-05-19 09:56:36 -07:00
uio
usb treewide: prefix header search paths with $(srctree)/ 2019-05-18 11:49:57 +09:00
uwb
vfio mm/gup: change GUP fast to use flags rather than a write 'bool' 2019-05-14 09:47:46 -07:00
vhost virtio: fixes, features 2019-05-14 14:12:59 -07:00
video fbdev/efifb: Ignore framebuffer memmap entries that lack any memory types 2019-05-17 11:07:42 +02:00
virt drivers/virt/fsl_hypervisor.c: prevent integer overflow in ioctl 2019-05-14 19:52:52 -07:00
virtio virtio/virtio_ring: do some comment fixes 2019-05-12 13:11:35 -04:00
visorbus
vlynq
vme
w1 Char/Misc patches for 5.2-rc1 - part 2 2019-05-07 13:39:22 -07:00
watchdog ARM: SoC platform updates 2019-05-16 08:31:32 -07:00
xen xen: fixes and features for 5.2-rc1 2019-05-15 18:44:52 -07:00
zorro
Kconfig
Makefile